Altas software is a upgrade version of mysql-proxy, whose function is the same as mysql-proxy.
Where can you get it ?
Altas 2.2.1
RPM:
https://github.com/Qihoo360/Atlas/releases/download/2.2.1/Atlas-2.2.1.el5.x86_64.rpm
https://github.com/Qihoo360/Atlas/releases/download/2.2.1/Atlas-2.2.1.el6.x86_64.rpm
Source code:
https://github.com/Qihoo360/Atlas/archive/2.2.1.zip
How do you install alts 2.2.1?
For rpm:
rpm -ivh Altas-2.2.1.el6x86_64.rpm
For source code:
./configure --prefix=/usr/local/mysql-proxy
make && make install
How to configure it.
1. Edit altas mysql-proxy configuration file which locates at /usr/local/mysql-proxy/conf
cat test.cnf | grep -v '^#' | grep -v '^$' > mysql-proxy.cnf
vim mysql-proxy.cnf [mysql-proxy] #帶#號的爲非必需的配置項目 #管理接口的用戶名 admin-username = user #管理接口的密碼 admin-password = pwd #Atlas後端連接的MySQL主庫的IP和端口,可設置多項,用逗號分隔 proxy-backend-addresses = 127.0.0.1:3306 #Atlas後端連接的MySQL從庫的IP和端口,@後面的數字代表權重,用來作負載均衡,若省略則默認爲1,可設置多項,用逗號分隔 #proxy-read-only-backend-addresses = 127.0.0.1:3305@1 #用戶名與其對應的加密過的MySQL密碼,密碼使用PREFIX/bin目錄下的加密程序encrypt加密,下行的user1和user2爲示例,將其替換爲你的MySQL的用戶名和加密密碼! pwds = user1:+jKsgB3YAG8=, user2:GS+tr4TPgqc= #設置Atlas的運行方式,設爲true時爲守護進程方式,設爲false時爲前臺方式,一般開發調試時設爲false,線上運行時設爲true,true後面不能有空格。 daemon = true #設置Atlas的運行方式,設爲true時Atlas會啓動兩個進程,一個爲monitor,一個爲worker,monitor在worker意外退出後會自動將其重啓,設爲false時只有worker,沒有monitor,一般開發調試時設爲false,線上運行時設爲true,true後面不能有空格。 keepalive = true #工作線程數,對Atlas的性能有很大影響,可根據情況適當設置 event-threads = 8 #日誌級別,分爲message、warning、critical、error、debug五個級別 log-level = message #日誌存放的路徑 log-path = /usr/local/mysql-proxy/log #SQL日誌的開關,可設置爲OFF、ON、REALTIME,OFF代表不記錄SQL日誌,ON代表記錄SQL日誌,REALTIME代表記錄SQL日誌且實時寫入磁盤,默認爲OFF #sql-log = OFF #慢日誌輸出設置。當設置了該參數時,則日誌只輸出執行時間超過sql-log-slow(單位:ms)的日誌記錄。不設置該參數則輸出全部日誌。 #sql-log-slow = 10 #實例名稱,用於同一臺機器上多個Atlas實例間的區分 #instance = test #Atlas監聽的工作接口IP和端口 proxy-address = 0.0.0.0:1234 #Atlas監聽的管理接口IP和端口 admin-address = 0.0.0.0:2345 #分表設置,此例中person爲庫名,mt爲表名,id爲分表字段,3爲子表數量,可設置多項,以逗號分隔,若不分表則不需要設置該項 #tables = person.mt.id.3 #默認字符集,設置該項後客戶端不再需要執行SET NAMES語句 #charset = utf8 #允許連接Atlas的客戶端的IP,可以是精確IP,也可以是IP段,以逗號分隔,若不設置該項則允許所有IP連接,否則只允許列表中的IP連接 #client-ips = 127.0.0.1, 192.168.1 #Atlas前面掛接的LVS的物理網卡的IP(注意不是虛IP),若有LVS且設置了client-ips則此項必須設置,否則可以不設置 #lvs-ips = 192.168.1.1
2. How to start altas mysql-proxy
Execute the command which is "/usr/local/mysql-proxy/bin/mysql-proxy --defaults-file=/usr/local/mysql-proxy/conf/mysql-proxy.cnf".
3.Configure altas mysql-proxy engine startting shell.
vim /etc/init.d/mysql-proxyd #!/bin/bash # # altas mysql-proxy This script starts and stops the mysql-proxy daemon # # chkconfig: - 78 30 # processname: mysql-proxy # description: altas mysql-proxy is a proxy daemon to mysql # config: /usr/local/mysql-proxy/conf/mysql-proxy.cnf # pidfile: /usr/local/mysql-proxy/mysql-proxy.pid # DAEMON="/usr/local/mysql-proxy/bin/mysql-proxy" CONFIGFILE="/usr/local/mysql-proxy/conf/mysql-proxy.cnf" PIDFILE="/usr/local/mysql-proxy/mysql-proxy.pid" LOCKFILE="/var/lock/subsys/mysql-proxy" PROG=`basename $DAEMON` RETVAL=0 start() { echo -n $"Starting ${PROG}......" [ -x $DAEMON ] || exit 5 [ -f $CONFIGFILE ] || exit 6 ${DAEMON} --defaults-file=${CONFIGFILE} || echo -n "${PROG} already running" RETVAL=$? echo [[ $RETVAL -eq 0 ]] && touch $LOCKFILE return $RETVAL } stop() { echo -n $"Stopping ${PROG}......" if [[ `ps aux | grep bin/mysql-proxy | grep -v grep | wc -l` -gt 0 ]]; then kill -TERM `ps -A -oppid,pid,cmd | grep bin/mysql-proxy | grep -v grep | awk '{print $2}'` fi RETVAL=$? echo [[ $RETVAL -eq 0 ]] && rm -f $LOCKFILE $PIDFILE return $RETVAL } restart() { stop sleep 1 start } case "$1" in start) start ;; stop) stop ;; restart) restart ;; condrestart) [[ -e $LOCKFILE ]] && restart ;; *) echo "Usage: $0 {start|stop|restart|condrestart}" RETVAL=1 ;; esac exit $RETVAL chmod u+x /etc/init.d/mysql-proxyd